diff --git a/config.toml b/config.toml
index cec4849..f0a052b 100644
--- a/config.toml
+++ b/config.toml
@@ -10,7 +10,7 @@ name = "nostr-rs-relay"
 # Description
 description = "A newly created nostr-rs-relay.\n\nCustomize this with your own info."
 
-# Administrative contact pubkey
+# Administrative contact pubkey (32-byte hex, not npub)
 #pubkey = "0c2d168a4ae8ca58c9f1ab237b5df682599c6c7ab74307ea8b05684b60405d41"
 
 # Administrative contact URI